Exploring the Shift in Children’s Incline Motion Predictions: Fragmentation and Integration of Knowledge as Possible Contributors

Michael Hast

Journal of Educational and Developmental Psychology, 2014, vol. 4, issue 2, 74

Abstract: Recent research with primary school children has indicated that while younger children believe a light ball willroll down an incline faster than a heavy ball—matching their beliefs about horizontal motion—older childrenbelieve the heavy ball will roll down faster—matching their conceptions about fall. Tentative suggestionsregarding the cause of this age shift were made, but no clear conclusion could be reached. The present researchaimed to resolve this issue by addressing the subjectivity of children’s predictions. Children (N = 210) aged 5-11completed a paper-based task where the trajectories of a heavy and a light ball needed to be contrasted for threemotion dimensions—horizontal, fall and incline—to address how trajectory predictions compare. The findingssuggest that a declining salience of the horizontal dimension in the reasoning process appears to contribute to theage-related shift. It is proposed that these developmental changes in making predictions about object motion canbe explained on the basis of fragmentation and knowledge integration. The importance of this work lies incontributing towards clearer models of how commonsense theories of motion develop across childhood. This, inturn, bears implications for curriculum structures and teaching approaches in primary science.

Date: 2014
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